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# @summary Manages a single cgit filter.
# @param filtername
#   Target filter.
# @param source
#   Soruce file of filter, mutually exclusive with content.
# @param content
#   Contents of filter, mutually exclusive with source.
# @param file_props
#   Passed along to the file resource. Useful for checksums.
# @param type
#   If it's a lua or exec filter. Inferred from source filename.
define cgit::filter (
  Cgit::Filter_types $filtername = $name,
  Optional[Variant[String, Array[String]]] $source = undef,
  Optional[String] $content = undef,
  Hash $file_props = {},
  Enum['lua', 'exec'] $type = stdlib::extname($source) ? {
    '.lua'  => 'lua',
    default => 'exec',
  }
) {
  include cgit::filter_setup

  $dest = "${cgit::filterpath}/${filtername}-filter"

  $mode = $type ? {
    'lua'  => '0444',
    'exec' => '0555',
  }

  file { $dest:
    ensure  => file,
    mode    => $mode,
    source  => $source,
    content => $content,
    *       => $file_props,
  }

  concat::fragment { "cgit config filter ${filtername}":
    target  => $cgit::cgitrc,
    content => "${filtername}-filter=${type}:${dest}\n",
    require => File[$dest],
  }
}